Undercover police officers were able to locate the secretive gambling activities inside a snack shop in the early hours of Sunday

A Vietnamese man was arrested during the early hours of Sunday in a rural district of southern Tainan, Taiwan, after allegedly running a gambling den that targeted compatriot immigrants and migrant workers.

Police in Gueiren district, Tainan, had received citizens’ complaints regarding an apparent gambling site operating in their neighborhood that catered to immigrants and migrant workers, usually during factory rest hours, China Daily News reported.